One Piece - episode 31 - 11 Jul, 2000

The crew chases after Nami, who stole their ship, and Yosaku takes time during the trip to explain about Arlong and his Fishmen to Luffy and Sanji. Meanwhile, Usopp, Johnny, and Zoro arrive at the island Nami docked at. (Source: Wikipedia) East Blue saga: Arlong Park arc: (1/14)